foo.cpp:1:1: error: 'include' does not name a type
foo.cpp: In function 'int main()':
foo.cpp:6:6: error: 'NULL' was not declared in this scope
foo.cpp:8:1: error: 'cin' was not declared in this scope
foo.cpp:11:10: error: 'NULL' was not declared in this scope
foo.cpp:29:1: error: 'cout' was not declared in this scope
foo.cpp:32:1: error: 'cout' was not declared in this scope
foo.cpp:35:1: error: 'cout' was not declared in this scope
foo.cpp:38:1: error: 'cout' was not declared in this scope